Elevator equipment.



APPLICATION FILED FEB. ZE, i918.

W. ARMSTRGNG.

ELEVATOR EQusPMENT. v

Paented Nov. 12, 1918,

2 SHEETS-SHEET l.

@num/wm WAHI/18mm. ELEVAIOR EQUIPMENT.

APPLICATION FILED FEB. 2B. I9I8.

Patented Nov. 12, 12H8;

2 SHEQTS-SHEEI 2.

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Specification of Letters Patent.

atented or. i2, Mild.

Application-filed February 2%, 1913. Serial No. 219,663.

The invention relates particularly to anequipment for eleratorsnnereinthe doors of the elevator shaft are controlled by the car.

The invention to provide as its principal ohjeet a means whereby thedoors opening into the elevttor shaft from various floors may he seemeda ganrstopening except when the 'Hoor of the Car level 'with any of thefloors on to which the doors open.

Another object of the invention is the provision of means to prevent theoperation of the car atte "a door has been opened as a result ofbringing the car to the level of any partieular lioor.

Still another object of the invention is the provision of anelectrically operated app-aratus conjoined With the car and with theelevator shaft doors of the several floors of a 7mlildinzgg', 'wherebythe principal objects of the invention are contained.

Still another ohjeet of the invention is to provide an equipment o'lthisi, charaotz. which is simple in construction, which is easilyinstalled and which is cheap and may, therefore, he employed at a smallcost.

Other and further objects will appear as the invention is set `forth indetail in the aecompanying; description.

To the exact construction herein shown and described, the invention isnot to loe restricted. The actual practical application of thisequipment may show certain desir-i able changes or alterations to beadvisable and these the right is claimed to make. in so far as they maytie compatible with the spirit of the subjoined claims.

In the aecompanving drawings:

Figure l is an elevation, partly diagrammatic. of the elevatorshatt andits attendant car, showing the employment of the iinproved equipment,

'Fig'. 2 is a detail view et a portion or tlie equipment which isapplied on theframe of the elevator shaft door.

3 is a detail view ot an upper corner of' one oi? the ddors,

Fig. et is an end view of the structure shown in 3.

Fig. 5 is a view partly in section showing a portion of the equipmentcarried by the car and also a portion or" the equipment mounted in theshaft.

Fig. 6 a. view of the saine structure shown in Fig. 5 as it appears'when looking at right angles to the directionin which Fig. 5 is viewed.

F 1g. 7 is a vieu' looking at F155. 5 frein the top.

Fig. 8 is a central vertical sectional View of one of the lockingmechanisms employed in locking the Various doors.

Fig. il is a View partly in section and partly in elevation showing themechanism for locking; the ear against operation.

Referring to the drawings, there vis shown an elevator shaft 1communicating' with the several ioors 2 of a building. Each floor isprovided with a. door 3 that communicates with the elevator. shaft,these doors beineT slidaoly supported in trout ot the door opening on asuitable track from which they are swung by the hangers t. The doorsSere hung in the elevator shaft and are of slightly larger dimensionsthan the door openings which are indicated by dotted lines in Fifi. l.lilith particular reference lto l, the doors are intended to loe openedby moving them to the lett and the equipment comprising apart oi' thisinvention and which is designed to be atta-.cheri to the doors earriedon the front ends 'thereof which. as shown in L is ou the right.

The surrounding frame 5 on Aeeeh door opening provided with a tripping;inem ber 6 met" ed near the .upper right hand corner7 it being; assumedthat the equipment as it is beingdescrilied ifbeing' viewed from vithinthe elevator shaet.- This tripping member 6 is o'f the shape shown inFigs. l and Q and is fixed pivotaliy to the frame 5 by means of u su'ialole rivet or pin 7 WlfiioA passes through it at the lett hand end andenters the door frame. The tripping memloer 6 is designed to liehorizontally andit iS provided with a diagonal edge 8 and asyei`- tiealedge 9 at the right hand end., this right hand end being in Acloseproximity to the right hand side of the frame 5. A pin 14 is `fixed inthe trame 5 andv the diagonal edge S rests on this pin, thus holding thetripping @senese gaged by the 1i-shaped end of the paivl 35i the latterbeing slidable through a guide 36 carried `within. tl:V car. A. solenoidl? is also carriedniithin the car and this solenoid is proifided withprojecting@T erin 3S on which there is fulcrulned a leer 3f) which atone end eli'ects pivotal connection with the bottoni end ot thepawl 35,the end of tne lever belngprorided with an elongated hole to permit itsoscillatory movement at the saine time .that tie paal is movingvertically.

The solenoid 37 is provided with the usual iluno'er l0 and the end ofthis lunUer is li. b D

connected to the adjacent end of the lever by a. linlr 4l. "li-Then thesolenoid 37 is deenergizedv` the longer erin of the lever trips bygravity against the stop 42 thus bringing the pawl 35 out. of engagementwith the notch and also raising the plunger 40. When. the solenoid 3T isen: ergized., it draws in the plunger Ll@ and thus operates to raise thepawl 35 so that it may engage the notch 34.

To prcnfide the necessary current for the equipment any s hable sourceof electrical suppl;7 is employed and a conducting Wire el leads `tronione terminal of this supply and extends throughout the length oi theelevator shaft l. Taps are taken oir the conductor lll adjacei'it eachfloor through which the shaft. 1 passes and these taps are connected oneto each of the contact plates 2S. The conductor i6 is led *from theother source ot electrical supply and connects with the cer 21 on thebottom thereof in the same Way that the light and bell conductorsconnect with the car. means a conductor 47, the conduct-or 4G isconnected with the terminal of the solenoid 37 and the lother terminalof this solenoid connects by means of a conductor e8 with the stud 22.

Let it be assumed that an elevator equipnient provided with the presentinvention is in use and that all the doors of the elevator shaft areclosed and that all the attendant parts are in their normal positions.Let it be further assumed that the car 2l 1's between two floors andthat the roller 25 has just passed under a. guide 3l. lThis roller 25will then haresuch a position relative to the car and to the shaft. tobringr the Contact arm 26 in the position to have its bifurcated end conising the spring clips 2? enter between the pla "When this arm res and25 'thus enters between the 'two plates, the s designed to be level Withanding onto which the attendant door 3 oi th t landing; opens. Preriouscond" ,n o1? affairs. the door was locl l a l ed position because theergized and its plunger pe'rture i9 o che door linnen the Contact th theplate 29 (the o other purpose than to infr nieniber 6.

insure a. `tirni contact between the arm and the plate 29) an electriccircuit Will be es tablished from the source of electrical supply #i3over the conductor nl, the solenoid itl, the conductor '-l-, the plate29, the arrn 2G. the bolt 2l, the arm 23, the bolt 22, the conductorlththc solenoid 3?, the conductor l? and conductor lo back to the sourceof supply i3. rl`hc solenoid 16 is thus energized and raises its plungerl? leaving the door 3 tree to be opened. But the solenoidv? is alsoenergized at this time and, the car hai'- ing been brought to a stop bythe bringing ot' the lever 32 to a vertical position, the solenoid l? byoperating the lever 39 eects the locking of this lever. The particulardoor 3 concerned may, therefore, be opened but the car 2l may not bemoved because oi' the locking of the control lever 32. As the door isopened the upper end of the lever l contacts with the diagonal edge ofthe tripping lneniber 6 the door is thus permitted to slide back on itshangers el. rhe car having discharged its load, the door is closed butjust before the completion of the closing operation the upper end of thelever l() is brought into contact with the vertical edge of the triprlhemovement or" the door then shifts this lever l0 on .its pivot ll andthrows the lower end of the lever out beyond the front edge of the doorland brings its inclined portion l into Contact with the inncr circularedge ot' the roller 25. The continued movement ot' this lower portion l0by means of this inclined portion l5 opcrates to Withdraw the Contactarin Q6 from fric-tional engagement between the contact plates Q9, and30.. since the arni 23 which carries the roller Q5 and the arm 26 ispermitted to be moved pivotallj7 against the friction of the washer Thecircuit. which had previously obtained is broken b v the Withdrawal or"the contact arm QG from the Contact with the plate Q9. Therefore, thetwo solenoids concerned arc deinergized, the one dropping` its plungerand locking the door, the other permitting its plunger to be raised b vthe droppingof the lever 39. The operation of the lever l0 results inmoving the arm 9.3 and the other parts associated therewith. into aposition Where the contact arm 2S Will not he able to engage the contactplates 29 and 3() ol the next door at which itis desired to stop. Vlieobject of the guides 3l is to reestablish the condition of aliairs thatexisted before the operation ofthe lever l0 when the car is in thevicinitlv o't` the nent floor n'here it is desired to stop, the tguides3l operate to shift the roller 25 andthe arm 26 back into a. positionWhere the said arm may be enabled to engage the contact plates 29 and30.

f course, the Contact arm 2G establishes a circuit. at every door whichit passes but and raises it on its pivot and im@ TD" G "tho, 'u closureposion when he Unjv he Minime@ at Vm time the uch a pf um as t@ perm'ltth@ operation o Qu', in mofzion und wat av:

closed.

from ha,

The 1; fenrm having been @esc-@ibs is vmmcr new and. nse'iu 1.a:

L1 '2 dame@ ns set olth, the comblm dan mn-zj 'f'lem for: locking ijlemuy com Ct piates ca'rfie in #ivd 55.131 the 'fw mgnge- 1@ Contact paes,mams fm supcurmn -n he iwo afmfmid locking and to Hm P lmet pa'es andcar car-- n, whereby :l door may m15 the 0m' leaked in positfm on tbv,mr may be 1 plums; lg fha com shaft @Wig/p.; j' of O12 C imi means formet mon fue? also fram-'led by said Y ,l

t@ (engage oef H1@ csnact @uns in Supply cul'ent to the MGT@ 1g mams an@o tix@ canact 'pla nml (-(mla, mmbel, n kfereby aldoor may bn unlocked:md the czu locked in poso when Hm katie? is oppoite a particular a'ncH155 menus umwjoincd wth thv doors whaeby the arm fm iw Cul' may "bemoved Gu its pw @mi Cmmeon, :mtl gudea Carried in the' Shak fm' rvsmingthe mim to the occupied p ,Tinus m nJ-Qng operate@ su mmm;

HNE L :1 Ceevufv. :AM seit. fmth, che combm tmn, with an memtm @haiiequmwe aan? e dem@ decrcz mea .0C/lung" 'the je H19 @minuit

